Rotary cutting device of puffing extruder

Abstract

The utility model discloses a rotary cutting device of a puffing extruder, which relates to the technical field of puffing extruders, and comprises a barrel, a rotary cutter is arranged outside the barrel, and the rotary cutter is used for rotary cutting of puffed and extruded materials; the first rotating shaft is rotationally connected to the outer wall of the cylinder, and the rotary knife is fixedly connected to the outer wall of the first rotating shaft in a sleeving mode; the rotary driving mechanism is arranged in the cylinder body, and the rotary driving mechanism is used for adjusting the angle of the rotary knife; and the locking mechanism is arranged at the bottom of the cylinder body, and the locking mechanism is used for limiting and locking the rotary knife. The barrel body is used for driving the rotary knife to rotate to cut extruded materials, when the angle of the rotary knife needs to be sleeved, the rotary driving mechanism is used for driving the first rotating shaft to rotate, the first rotating shaft drives the rotary knife to rotate, meanwhile, the locking mechanism is used for fixing the angle of the rotary knife, and the purpose of adjusting the angle of the rotary knife is achieved. The service life is prolonged while the applicability of the rotary cutter is improved.

Description

Technical Field

[0001] This utility model relates to the field of extrusion press technology, and in particular to a rotary cutting device for an extrusion press. Background Technology

[0002] An extrusion press is a device that uses high temperature, high pressure, and mechanical shear force to expand materials. It uses the pushing force of a screw to extrude the material forward. During the extrusion process, the material is mixed, stirred, and subjected to friction, thereby gaining energy and reaching a high temperature and high pressure state, ultimately causing the material to expand. The main components of an extrusion press include a cooking zone, a degassing zone, a forming zone, and an extrusion die.

[0003] The rotary cutting device of the extrusion extruder is installed below the discharge die of the extrusion extruder to cut the extruded material. However, the angle of the rotary cutting device of the traditional extrusion extruder is fixed, and it is impossible to adjust the cutting angle according to the material hardness, moisture or product specifications. This can easily lead to incomplete cutting or burrs. The fixed angle may cause excessive wear in some areas, especially when processing high hardness or high fiber materials. The blade is prone to uneven wear and needs to be replaced frequently. Utility Model Content

[0004] The purpose of this invention is to provide a rotary cutting device for an extrusion extruder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary cutting device for an extrusion press, comprising:

[0006] A cylindrical body, the outside of which is provided with a rotary cutter, the rotary cutter being used to rotary cut the expanded extruded material;

[0007] A first rotating shaft is rotatably connected to the outer wall of the cylinder, and the rotary cutter is fixedly sleeved on the outer wall of the first rotating shaft;

[0008] A rotary drive mechanism is disposed inside the cylinder and is used to adjust the angle of the rotary cutter. The rotary drive mechanism includes a first bevel gear, which is fixedly sleeved on the outer wall of a first rotating shaft. A second rotating shaft is rotatably connected to the bottom of the inner cavity of the cylinder. A second bevel gear is fixedly sleeved on the outer wall of the second rotating shaft. The first bevel gear and the second bevel gear are meshed together.

[0009] A locking mechanism is provided at the bottom of the cylinder and is used to limit and lock the rotating blade.

[0010] Preferably, a square box is rotatably connected to the top of the cylinder, and a driving component is fixedly connected to the top of the inner cavity of the square box. The driving component is used to drive the cylinder to rotate.

[0011] Preferably, a connecting rod is fixedly connected to the top of the square box, and a sleeve rod is fixedly connected to the inner wall of the cylinder, with the second rotating shaft rotatably sleeved on the inner wall of the sleeve rod.

[0012] Preferably, the locking mechanism includes a turntable, the second rotating shaft extends to the outside of the cylinder, the turntable is fixedly connected to the end of the second rotating shaft away from the cylinder, a limiting groove is opened at the bottom of the cylinder, there are multiple limiting grooves arranged in a circumferential array, a limiting block is engaged with the inner wall of one of the limiting grooves, and an elastic component is provided between the limiting block and the turntable.

[0013] Preferably, the elastic component includes a spring, a circular rod is fixedly connected to the side of the limiting block away from the cylinder, the turntable is slidably sleeved on the outer wall of the circular rod, a pull rod is fixedly connected to the end of the circular rod away from the limiting block, and the spring is fixedly connected between the turntable and the limiting block.

[0014] Compared with the prior art, the technical effects of this utility model are as follows:

[0015] This invention utilizes a cylinder to drive a rotary cutter to cut the extruded material. When the rotary cutter angle needs to be adjusted, a rotary drive mechanism drives the first rotating shaft to rotate, which in turn drives the rotary cutter to rotate. At the same time, a locking mechanism is used to fix the rotary cutter angle, thereby achieving the purpose of adjusting the rotary cutter angle, improving the applicability of the rotary cutter and extending its service life. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the cylinder of this utility model.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the turntable of this utility model.

[0019] In the diagram: 1. Cylinder; 2. Square box; 3. Connecting rod; 4. Rotary cutter; 5. First rotating shaft; 6. First bevel gear; 7. Second bevel gear; 8. Second rotating shaft; 9. Sleeve rod; 10. Turntable; 11. Spring; 12. Driving component; 13. Pull rod; 14. Limiting groove; 15. Limiting block; 16. Circular rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figures 1-3 The rotary cutting device of the extrusion extruder shown includes a cylinder 1, a first rotating shaft 5, a rotary drive mechanism, and a locking mechanism. A rotary cutter 4 is installed on the outside of the cylinder 1, used to rotary cut the extruded material. The first rotating shaft 5 is rotatably connected to the outer wall of the cylinder 1, and the rotary cutter 4 is fixedly sleeved on the outer wall of the first rotating shaft 5. When the cylinder 1 rotates, the first rotating shaft 5 rotates around the central axis of the cylinder 1, driving the rotary cutter 4 to rotate around the cylinder 1, thus rotary cutting the extruded material. The rotary drive mechanism is located inside the cylinder 1 and is used to adjust the angle of the rotary cutter 4. The rotary drive mechanism drives the rotary cutter 4 to rotate, adjusting the rotary cutter angle by 4 degrees. The rotary drive mechanism includes a first bevel gear 6, which is fixedly sleeved on the outer wall of the first rotating shaft 5. A second rotating shaft 8 is rotatably connected to the bottom of the inner cavity of the cylinder 1, and the outer wall of the second rotating shaft 8... A second bevel gear 7 is fixedly fitted, and the first bevel gear 6 meshes with the second bevel gear 7. In specific use: the second bevel gear 7 is driven to rotate by the second rotating shaft 8, the second bevel gear 7 drives the first bevel gear 6 to rotate, and the first bevel gear 6 drives the rotary cutter 4 to rotate through the first rotating shaft 5, thereby achieving the purpose of adjusting the angle of the rotary cutter 4. The locking mechanism is set at the bottom of the cylinder 1. The locking mechanism is used to limit and lock the rotary cutter 4. In specific use: the rotary cutter 4 is driven to rotate by the cylinder 1 to cut the extruded material. When it is necessary to adjust the angle of the rotary cutter 4, the first rotating shaft 5 is driven to rotate by the rotation drive mechanism, and the first rotating shaft 5 drives the rotary cutter 4 to rotate. At the same time, the locking mechanism is used to fix the angle of the rotary cutter 4, thereby achieving the purpose of adjusting the angle of the rotary cutter 4, improving the applicability of the rotary cutter 4 and extending its service life.

[0022] On one hand, a square box 2 is rotatably connected to the top of the cylinder 1. A drive component 12 is fixedly connected to the top of the inner cavity of the square box 2. The drive component 12 uses a motor. The square box 2 provides support for the drive component 12 while protecting the drive component 12 from damage by the extruded material. The drive component 12 is used to drive the cylinder 1 to rotate. A connecting rod 3 is fixedly connected to the top of the square box 2. The connecting rod 3 is used to connect with the extrusion agent discharge mechanism. A sleeve rod 9 is fixedly connected to the inner wall of the cylinder 1. The sleeve rod 9 provides support for the middle of the second rotating shaft 8, ensuring the stable operation of the second rotating shaft 8. The second rotating shaft 8 is rotatably sleeved on the inner wall of the sleeve rod 9.

[0023] Additionally, the locking mechanism includes a turntable 10, a second rotating shaft 8 extending to the outside of the cylinder 1, and the turntable 10 fixedly connected to the end of the second rotating shaft 8 away from the cylinder 1. A number of limiting grooves 14 are provided at the bottom of the cylinder 1, arranged in a circumferential array. A limiting block 15 is engaged with the inner wall of one of the limiting grooves 14. The multiple limiting grooves 14 allow the limiting block 15 to lock and fix the rotary cutter 4 at multiple angles. An elastic component, including a spring 11, is provided between the limiting block 15 and the turntable 10. A circular rod 16 is fixedly connected to the side of the limiting block 15 facing away from the cylinder 1. The turntable 10 is slidably sleeved on the outer wall of the circular rod 16, with the circular rod 16 facing away from the limiting block 15. One end of the device is fixedly connected to a pull rod 13, and a spring 11 is fixedly connected between the turntable 10 and the limiting block 15. In specific use: when it is necessary to adjust the angle of the rotary cutter 4, pull the pull rod 13. The pull rod 13 drives the circular rod 16 to move, and the circular rod 16 drives the limiting block 15 to move. At the same time, the spring 11 is squeezed, and the turntable 10 is rotated. The turntable 10 drives the second rotating shaft 8 to rotate. The second rotating shaft 8 adjusts the angle of the rotary cutter 4. After the angle of the rotary cutter 4 is adjusted, release the pull rod 13. The spring 11 resets and drives the limiting block 15 to reset, so that the limiting block 15 is re-engaged with the limiting groove 14, thereby achieving the purpose of fixing the angle of the rotary cutter 4, improving the applicability of the rotary cutter 4 and extending its service life.

[0024] In specific operation: When it is necessary to adjust the angle of the rotary cutter 4, pull the lever 13. The lever 13 drives the circular rod 16 to move, and the circular rod 16 drives the limit block 15 to move. At the same time, the spring 11 is squeezed, and the turntable 10 is rotated. The turntable 10 drives the second rotating shaft 8 to rotate, which in turn drives the second bevel gear 7 to rotate. The second bevel gear 7 drives the first bevel gear 6 to rotate, and the first bevel gear 6 drives the rotary cutter 4 to rotate through the first rotating shaft 5, thereby achieving the purpose of adjusting the angle of the rotary cutter 4. After the angle of the rotary cutter 4 is adjusted, release the lever 13. The spring 11 resets and drives the limit block 15 to reset, so that the limit block 15 is re-engaged with the limit groove 14, thereby achieving the purpose of fixing the angle of the rotary cutter 4.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary cutting device for an extrusion press, characterized in that, include: A cylindrical body (1) is provided with a rotary cutter (4) on the outside of the cylindrical body (1), and the rotary cutter (4) is used to rotary cut the expanded extruded material; The first rotating shaft (5) is rotatably connected to the outer wall of the cylinder (1), and the rotary cutter (4) is fixedly sleeved on the outer wall of the first rotating shaft (5); A rotary drive mechanism is provided inside the cylinder (1). The rotary drive mechanism is used to adjust the angle of the rotary cutter (4). The rotary drive mechanism includes a first bevel gear (6). The first bevel gear (6) is fixedly sleeved on the outer wall of the first rotating shaft (5). A second rotating shaft (8) is rotatably connected to the bottom of the inner cavity of the cylinder (1). A second bevel gear (7) is fixedly sleeved on the outer wall of the second rotating shaft (8). The first bevel gear (6) and the second bevel gear (7) are meshed and connected. A locking mechanism is provided at the bottom of the cylinder (1) and is used to limit and lock the rotating blade (4).

2. An extruder screw- cutter apparatus according to claim 1, wherein, The top of the cylinder (1) is rotatably connected to a square box (2), and the top of the inner cavity of the square box (2) is fixedly connected to a driving component (12), which is used to drive the cylinder (1) to rotate.

3. A bulking extruder spin cutter device according to claim 2, wherein The top of the square box (2) is fixedly connected to a connecting rod (3), and the inner wall of the cylinder (1) is fixedly connected to a sleeve rod (9). The second rotating shaft (8) is rotatably sleeved on the inner wall of the sleeve rod (9).

4. The rotary cutting device for an extrusion press according to claim 3, characterized in that, The locking mechanism includes a turntable (10), the second rotating shaft (8) extends to the outside of the cylinder (1), the turntable (10) is fixedly connected to the end of the second rotating shaft (8) away from the cylinder (1), a limiting groove (14) is opened at the bottom of the cylinder (1), the limiting groove (14) is multiple and arranged in a circumferential array, one of the limiting grooves (14) has a limiting block (15) engaged in the inner wall, and an elastic component is provided between the limiting block (15) and the turntable (10).

5. The rotary cutting device for an extrusion press according to claim 4, characterized in that, The elastic component includes a spring (11), a circular rod (16) is fixedly connected to the side of the limiting block (15) away from the cylinder (1), the turntable (10) is slidably sleeved on the outer wall of the circular rod (16), a pull rod (13) is fixedly connected to the end of the circular rod (16) away from the limiting block (15), and the spring (11) is fixedly connected between the turntable (10) and the limiting block (15).

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